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Why does the vulcanization of silicone and plastic in the mold cause partial adhesion and partial non-adhesion?

20 Feb 2020

According to various silicone adhesive experiments, concord silicone glue division gives the following solutions:

1. The surface of the plastic is not cleaned, that is, some parts of the plastic are clean, while some are covered with oil, dust, etc., resulting in the non-sticking of the silicone and the plastic (just go to the machine after cleaning).

2. The plastic surface is coated with silicone glue (silicone primer), which is uniform, resulting in non-adhesion between silicone and plastic;

(concord silicone glue can be sprayed, brushed, soaked and other operating processes to treat the plastic surface)

3, the plastic coating after brushing the surface treatment agent, in time, operator hands have oil or a lot of water, grasp the plastic parts, resulting in the plastic parts and silicone non-stick

4, plastic parts have a combination of different parts, there is crack in the middle, the silicone material is placed in the computer, didn't pay attention to the places in the gap left interval, cause at the time of closing the gap of the air inside of plastic parts can't discharge, cause the crack location on bubble plastic and silicone non-stick (put silicone material, cut the silicone in gap position);

5, the plastic material is uniform, resulting in the silicone glue can not activate its molecules, resulting in the appearance of plastic and silicone non-stick.

KANGLIBANG is to creat solution for your problem with bonding silicone, welcome customer inquiry to us.

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H Building ,Xinwei The 3rd Industrial Park,Dalang Street,Longhua New District , Shenzhen City ,Guangdong Province ,China

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